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ZvSheetv-Sheet `1. P. CHASE,

TACKMAKING MAGHINB.

Patented Jan. 25, 1887.

(No Model.)

N4 PETERS'A Flzmo-blhogmphcr, Waahugmn. D. C.

(No Model.) 2 Sheets-Sheet 2. F. CHASE.

TACK MAKING MAUEIEE.

No. 356,619. Patented Jam. 25, 188'?.

` Wi'nesa ew:

251,71 c? n? ma ,f

' Unteren STriTns aTnuT FRANK CHASE, OF BOSTON, MASSACHUSETTS, ASSGNOR TO THE CHASE LASTING MAGHIE COMPANY, OF SAME PLACE.

TAcK-niAKiNo'MAci-nns.

""-"3ECEE' ATE forming part of Letters Patent No. 356,619, dated January 25, 1887.

Application tiled Seytemher 2i, ISSG. Serial No. 214,168. (No model.)

To aZZ whom z5 may concern:

Be it known that l, FRANK Cui-isn, or' Bos ton, in the county of Suffolk and State Gildassachusetts, haveinvented certain new and useful Improvements in Machines for Making Tanks, ol' which the following is a specification.

The object I have in my invention is to produce a machinefor making' tack-strips, similar' to that shown and described in my Letters Patent No. 337,662, of March 6, 188G-that is to say, a taclestrip consisting of wire bent at intervals into loops pressed into tach form, the legs of the loop formingthc shank and point of thc tack.

In order to attain the object l have in view l employ a reciprocating punch, a. reciprocating device which l terni an abutment,"7 inasmuch as it forms a block against which the punch acts, and afeeding mechanism whereby the wire is fed intermittently and at the proper intervals in loog forni into the runway or space between the punch and the abutment. The

punch reciprocates lengthwise of the runwayl' The abutmentre'ciprocatcs across the runway, its movements being so timed that it first shall be a block across the runway, between which and the reciprocating punch the loop or length of wi rc fed into the space between the two shall be pressed into tack form,and then shall withdraw, so as to permit the newly-formed tack, as woll as the others of the tack-strip, to pass forward through the runway the requisite distance for the production of another tacit. The feeding mechanism of course operates during theintervals between the successive tack-forro ing operations and while the punch is wit-hdrawn. Itisin this combination of the punch, the abutment, and mechanism for intermittently feeding; from a continuous wireinto the space between the two the loop of wire needed to form the tach that my invention, mainly, is comprised. Various forms of feeding mech anism can be made use of. The feeding mechanism which l prefer consists of adevice termed by ine a loopen which has reciprocatory movement into and out of the space between the punch and abutment, and intermittently and at the proper intervals moves against the wire, which extends lengthwise and above the bottom of the space or runway, bending or pushing down into loop form that portion of the wire included in said space, and drawing fro m the reel the wire necessary to permit this operation. in this way the wire is fed in loop form into the space between the punch and the abutment. The wire is held atits forward end between the abutment and an opposite clamping surface, and the supply' of wire needed to form the loop is therefore drawn from the other end. This clampingsurface, or clanip, as l term it, l prefer to make movable, giving it reciprocatory movement, so that its clamping action will take place intermittently and at the proper intervals only. lVith the punch, abutment, and feeding mechanism l also prefer to combine an intermittently-acting header, or device for ilattening the headof the tack, or that-end opposite to the point, which latter is formed by the bght of the squeezed loop.

lith this general explanation oi' the nat-ure of my invention, I/now proceed to a description of the accompanying drawings, which represent a machine embodying the several features of my invention in their preferred form.

Figure l is a sectional side elevation of the machine, the line of section, wherever there are sectional parts shown, being,` centrally and longitudinally of the machine-that is to say, in the line of the runway. Fig. 2 is a plan of the machine, with the top levers, the louper, the clamp, and the header removed, and the central top plate partly broken away to show the abutmentand the forward end of the punch.

Only so much ot the machine is shown as is needed for purposes of explanation. The legs and part of the framework are omitted, and the earns are shown diagrammatically.

The table on which the various working parts are placed is shown at A, and below it is the she-lt' A', to which are connected the system of levers for giving motion to the various parts. The shelf and table are connected together by suitable rods or bolts, and forni part of the framework of thc machine, as will be understood without further explanation.

For the purpose ot' securing;` greater mechanical accuracy the table isv recessed to receive steel plates or beds BBin the top of which and ci' intervening,` portions of the table, is formed longitudinally and centrally of the machine the runway or groove C, in which the IOO wire and formed tack-strip are fed along and the punch D and upper part of the abutment E reciprocate. The bed B, for the purpose of securing nicety of adjustment, is held in dovetailed or undercut grooves in the table, so that it may slide crosswise of the latter, and is held inadj usted position by side set-screws, a,which pass through side brackets, b, on the table, and press at their inner ends upon the side edges of the bed.

Over the central portion of the ned and table is a covering-plate, B2, through which play the looper F, the clamp G, and the header H.

The punch D reciprocates horizontally back and forth in the runway. It is mounted on a carrier, D', and is secured thereto so as to be longitudinally adjustable by ajacl; -screw, c, screwing into flange on the carrier and bearing at its head against the end of the punch, and by a slotted plate, d, held to the carrier by screws e, passing through said slot-s, and bearing at its rear edge against a lug, f, on the punch. The punch is thus held between the jack-screw and the slotted adjustable plate, and manifestly can be adjusted longitudinally so as to meet the abutment E, sooner or later, during its forward movement.

The reciprocatory movement of the punch is derived from the lever y, pivoted to the at the other to the cam-arm 7L, which has a forked end to straddle the shaft 1, and is provided with a cam-roll, 2, to enter a groovciin the face-cam 3 on said shaft.

In advance of the punch is the abutment E, .which reciprocates vertically in proper guides, so that its upper end shall alternately project into and be drawn down out ofthe runway. The space in the runway (shown in. Fig. 1) between the punch and the abutment is that into which the wire is fed and in which the loop is formed. The wire loop is squeezed between the contiguous faces of the punch and the abutment, and

these `faces are so formed as to give the proper taper to the shank of the tack.

in so far as concerns its co-operation with the punch, the upper end of the abutment need be of athickness from front to rear equal to or avery little less than the interval separating two successive tacks; but itis made of greater thickness in order to cooperate also with the header H, and consequently has formed in it at appropriate intervals vertical sockets or holes i, for receiving such of the formed tacks as may not have passed beyond' it, as indicated in Fig. 1.

The abutment Ederives its movement from a toggle-lever, j, at the elbow of which is a cam-roll, 4, which enters a cam-groove on the face-cam 5, which is carried by and revolves with shaft 1.

The looper F has vertical reci procatory movement. It plays through the clamp G and down into the runway in the space between the punch and the abutment. l

The wire from which the tack-strip isvmade passes from any suitable reel down through table andjointed at one end to the carrier and:

an inclined feedopening, k, in the top plate,

BZ, into the runway, extending beneath thclooper and above the abutment, a spring presser, Z, being used 'to prevent too free delivery of the wire, while during the operation of the looper the wire is heldat the ifront between the abutment and the clamp G, as will be presently and `more fully described. The looper descends upon the wire, and, drawing it in from under the presser Z, bends it down in loop form into the space between the punch and the abutment. punch moves forward and squeezes the loop between it `and the abutment, thus pressing the loop of wire into tack form. As soon as this has been accomplished the abutment descends, so as to get out ofthe way of the newlyformed tack, and the punch then moves farther forward, and in so doing pushes along the whole tack-strip a distance just equal to that which separates successive tacks, and then at once recedes to its original position. bring the newly-formed tack over the first hole in the abutment, into which it will enter, when the abutment again rises, as indicated in Fig. 1, where the wire partly made into a tack-strip is shown at w.

The looper is actuatedby a pivoted arm, m, jointed at one end to the looper and at the other to a toggle-lever, n, and the latter is moved and controlled by a cam-roll, 6, at its elbow, which enters a canrgroove in face-cam 7 on shaft S.

The clamp G acts, as before said, tolclamp the wire upon the abutment E, so as to prevent it from being drawn back by the action of the looper. It has for this purpose reciprocatory movement impartedto it at proper intervals, said movement being imparted from a pivoted arm, o, jointed tothe clamp at one end and at 1 the other end to toggle-leverp, provided at` its elbow with cam-roll 9, entering caurgroove 10 of face-cam on shaft 8.

The two shafts 8 and 1 derive their rotary movement from drivingsha'ft 12 through gear` ing 13 14 15, and they revolve synchronously. The header His intended to press upon and fiatten that portion of the strip which; is designed to iorm the head of the tack. The abutment forms what may be termed the anvil, against which it strikes or presses, and it can thus act at any timeduring the period when the abutment is up. Its reciprocatorymovement is obtained from a pivotedlever, r, jointed at one end to the header and at the other end 1 to vertical arm s, provided at its lower end with a canrroll, 16, which bears upon the pet ripheral cam 17 on shaft 8, the cam-roll`being After the looper rises they This will IOO IXO

held in contact with the cam by spring318,

which tends to pull down the end of lever o', to which arm s is jointed.

As a matter of mechanical construction in thearrangement shown inithe drawings, it is preferred to make the header H in two parts, thelower part or header proper, H, playing through the plate B2 and arm o, and upheld by ISO an encirclingspring, t, interposed between the arm o and the flanged top of the header, and the upper part, H', arranged to bear upon the top oi' the header and made vertically adjustable in the lever r, as seen in Fig. 1, so that it may meet the part H, sooner or later, in its downward stroke.

The operation ofthe several parts will now be described. Their actuatingcams are'of course shaped to impart appropriate movement to them, and in order to enable the skilled mechanic to more readily construct such cams, as well as toa better understanding of the mode of operation ofthe machine, lhave placed upon the drawings adjoining Fig. l a table indicating the position and movements of the several. parts during one complete revolution ofthe cams, the three hundred and sixty degrees, constituting one complete revolution, being subdivided into divisions of thirty degrees each. In the several lines, reading from left to right, are indicated the movements and positions assumed by the looper F, punch D, abutment E, clamp G, and header H, respectively.

In Fig. l tbeparts are represented in the position they occupy upon the completion of one entire revolution-that is to say, in the righthand column of the table. At this time the looper is up and at rest, the punch has Liust finished its backward or receding movement, the abutment is up, and the clamp is down, the wire thus bein g clamped between the parts E G. Starting upon another revolution, during the first thirty degrees, as seen in the lefthand column of the table, the looper descends while the other parts remain at rest. During that portion of the revolution from thirty degrecs to sixty degrees all the parts still remain at rest, except the looper, which rises and returns toits first position, having accomplished the bending ofthe wire into loop form. From ninety degrees to one hundred and eighty degrees all of the parts remain at rest, save the punch, which during this portion of the revolution moves forward and squeezes the loop into tack form. From one hundred and eighty degrees to two hundred and ten degrees all of the parts remain at rest, except the clamp, which rises, and the abutment, which descends, so as to leave the runway clear. From two hundred and ten degrees to two hundred and forty degrees the parts are at rest, excepting the punch, which moves still farther forward a distance equal to that which separates the acting face or side of the abutment from the first hole, i, the effect of this being to advance the tack-strip far enough to bring the newlyformed tack just over said hole i.. From two hundred and forty degreesto two hundredand seventy degrees all the parts are at rest, except the punch, which begins to move back to its original position, and in so doing travels far enough to uncover or clear the abutment. From two hundred and seventy degrees to three hun-u dred degrees the clamp and louper are at rest while the punch is still moving, and the abutment rises again to the position from which it descended. From three hundred degrees to three hundred and thirty degrees the abutment and looper are at rest, while the punch is still recedingand the clamp begins to descend upon the abutment. From three hundred and thirty degrees to three hundred and sixty degrees the clamp concludes its descent, the punch concludes its receding inovenieub and the looper and abutment are at rest, the parts, when the point indicated by three hundred and sixty degrees has been reached, occupying again the position shown in the drawings.

In the foregoing description I have not deemed it necessary to include' the header H. Itis sufficient to say that it can operate atany time during the period when the abutment is up and at rest.

In order to prevent any possibility of the tack-stri p being drawn back while the punch is receding and the abutment is down, I provide in the side of the runway a light springcontrolled pawl or detent, c, providedwith a tooth which enters the space between any two successive tacks, andis arranged to yield only in a direction to permit the advance of the tack-strip, the tooth being beveled in a direction to facilitate this advance movement. The successive tacks can thus readily pass beyond the detent, but cannot be drawn back, the strip being thus held in proper position.

With a view to more readily and nicely ad- Liusting the movements of the several parts, I provide for each one of the toggle-levers a vertical adjustment, as shown, for example, in section in connection with the lower end of togglep. The lower arm of this toggle is jointed to the head of a post or support, '10, the stem of which passes through and swivels in a sleeve, y, and' is held thereto by a not, c, screwing on the lower end of the stein, the sleeve thus being heldbetween the head of the post and the not. The sleeve is externally screwthreaded and screws down through the shelf A. lt is manifest that 'by turning the sleeve in one direction or the other (which can be done without turning the post au) the toggle can be lifted or lowered, as the case may be. A check-nut, c', is used to hold the sleeve in its adjusted position.

l Having described myinvention and the best way now known to me of carrying the same into practical effect, what I claim as new, and desire to secure by Letters Patent, is as follows:

1. The combination of the reciproca-tory punch, the reciprocatory abutment, and mechanism for feeding the wire into the space or runway between the punch and the abutment, these parts being timed in their movements relatively to one another and operating together, substantially in the manner and for the purposes hereinbefore set forth.

2. The combination of the punch, the abutment, and the looper, these parts being operated to move at the times and in the manner substantially as hereinbefore set forth.

3. The combination of the reciprocatory punch, the reciprocatory abutment, mechan- IlO ism for intermittently feeding the Wire into the space between the punch and abutment, and the recipiocatory header, these parts being timed in their movements and operating together, substantially in the mauner-hereinbe fore set forth.

4. The combination of the recprocatory punch, the reciprocatory abutment, inten mittenty-operating wire-feed mechanism, and the reciprocatory clamp, these parte being timed in their movements and adapted for joint operation, substantially as heieinbefore set forth. r

5. The combination ofthepunch, theioopex', the abutment, the clamp, the header, `and mechanism for imparting reeprocatory movement to the same at the times and in the manner substantially as hereinbefore set forth.

6. The combination, with the reciprocatory FRANK CHASE.

Witnesses:

EWELL A. DICK, y Mam/1N A. OUsTls. 

